One of the key arguments made by David Horowitz and his supporters in recent years is that a left-wing orientation among faculty members results in a lack of curricular balance, which in turn leads to students being indoctrinated rather than educated. The argument is probably made most directly in a film much plugged by Horowitz: “Indoctrinate U.”

A study that will appear soon in the journal PS: Political Science & Politics accepts the first part of the critique of academe and says that it’s true that the professoriate leans left. But the study — notably by one Republican professor and one Democratic professor — finds no evidence of indoctrination. Despite students being educated by liberal professors, their politics change only marginally in their undergraduate years, and that deflates the idea that cadres of tenured radicals are somehow corrupting America’s youth — or scaring them into adopting new political views.